<template>
  <h1>循环指令</h1>
  <ul>
    <!-- item从1开始，每执行一次，item的值+1，一直到数字n -->
    <!-- v-for的效果：执行5次，生成5个li，里面是数字1~5 -->
    <li v-for="item in 5">第{{ item }}位</li>
  </ul>
  <ul>
    <li v-for="item in arr">{{item}}</li>
  </ul>

  <table border="1px">
    <tr>
      <th>编号</th>
      <th>种类</th>
      <th>价格</th>
      <th>库存</th>
      <th>操作</th>
    </tr>
    <tr v-for="(item,index) in arr">
      <td>{{index+1}}</td>
      <td>{{item.title}}</td>
      <td>{{item.price}}</td>
      <td>{{item.num}}</td>
      <td><button @click="del(index)">删除</button></td>
    </tr>
  </table>

</template>
<script setup>

import {ref} from "vue";
import index from "vuex";

const arr = ref([
  {title:'苹果',price:10,num:30},
  {title:'香蕉',price:20,num:40},
  {title:'梨子',price:30,num:50},
  {title:'葡萄',price:40,num:66},
  {title:'西瓜',price:40,num:66},
  {title:'橘子',price:40,num:66},
  {title:'榴莲',price:40,num:66}
]);

const del = (index)=>{
  if (confirm('是否确认删除？')){
    arr.value.splice(index,1);
  }
}
</script>


<style scoped>

</style>